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<Title>output_iterator_tag</Title>
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<H1>output_iterator_tag</H1>

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<TD Align=left><Img src = "iterators.gif" Alt=""   WIDTH = "194"  HEIGHT = "38" ></TD>
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<TD Align=left VAlign=top><b>Category</b>: iterators</TD>
<TD Align=right VAlign=top><b>Component type</b>: type</TD>
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</Table>

<h3>Description</h3>
<tt>Output_iterator_tag</tt> is an empty class: it has no member functions,
member variables, or nested types.  It is used solely as a &quot;tag&quot;: a
representation of the <A href="OutputIterator.html">Output Iterator</A> concept within the C++ type
system.  Specifically, it is used as a return value for the function
<tt><A href="iterator_category.html">iterator_category</A></tt>.  <tt><A href="iterator_category.html">Iterator_category</A></tt> takes a single
argument, an iterator, and returns an object whose type depends on the
iterator's category.  <tt><A href="iterator_category.html">Iterator_category</A></tt>'s return value is of
type <tt>output_iterator_tag</tt> if its argument is an <A href="OutputIterator.html">Output Iterator</A>.
<h3>Example</h3>
See <tt><A href="iterator_category.html">iterator_category</A></tt>
<h3>Definition</h3>
Defined in the standard header <A href="iterator">iterator</A>, and in the
nonstandard backward-compatibility header <A href="iterator.h">iterator.h</A>.
<h3>Template parameters</h3>
None.
<h3>Model of</h3>
<A href="Assignable.html">Assignable</A>
<h3>Type requirements</h3>
None.
<h3>Public base classes</h3>
None.
<h3>Members</h3>
None.
<h3>New Members</h3>
None.
<h3>Notes</h3>
<h3>See also</h3>
<tt><A href="iterator_category.html">iterator_category</A></tt>, <A href="iterator_tags.html">Iterator Tags</A>,
<tt><A href="iterator_traits.html">iterator_traits</A></tt>,
<tt><A href="input_iterator_tag.html">input_iterator_tag</A></tt>,
<tt><A href="forward_iterator_tag.html">forward_iterator_tag</A></tt>, <tt><A href="bidirectional_iterator_tag.html">bidirectional_iterator_tag</A></tt>,
<tt><A href="random_access_iterator_tag.html">random_access_iterator_tag</A></tt>

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